Blind-stop



'(No Model.)

G. W. WILLIAMS.

BLIND STOP.

Patented Mar. 20

INVENTORZ WITNESSES ATTORNEYS.

N PETERS), PnuwLnn Fig. 2 is a longitudinal section on line 00 0c of throw the light downward; and Fig. 4 isa sec- UNITED STATES PATENT Trice.

GEORGE w. WILLIAMS, or BROOKLYN, NEW YORK.

BLIND- STOP.

SPECIPICATION forming part of Letters Patent No. 379.748, dated March 20, 1888.

Application filed September 10. 1857. Serial No. 249,367. (No model.)

To all whom it may concern:

Be it known that I, GEORGE W. lVILLiAMs, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Blind-Slat Fastener, of which the following is a full, clear, and exact description.

My invention is an improvement in the class of blind-slat fasteners which consist ofan apertured or notched segmental plate, adapted for attachment to either the slats or frame of the blind, and a catch or locking device adapted of holding the slats more or less open or wholly closed, as the case may be.

By an improvement hereinafter described and claimed, in the form of a plate and catch having these functions, I am enabled to attach them by means of screws to blinds of the ordinary construction withont cutting or otherwise Inutilating the latter.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a front elevation of a pair ofl blinds having my improvement applied, and

1. Fig. 3 is a partial elevation ofa blind, illustrating the slats as held in position to tion thronghlineyg ofFig. 3. Fig. 5 is asimilar section, the blinds being held at right angles to the stiles; and Fig. 6 is a perspective detail view of the device.

In carrying out the invention, a segmental plate, A, having an integral base, B, at right angles thereto, is provided, and in this plate a concentric series of apertures, b, is made side by side, at equal distances apart, near the outercurved edge ofthe plate. The apertures Z) are preferably rectangular in shape and are radially arranged, whereby the united upper and lower ends of the apertures each constitute an arc, concentric with the semicircular edge of the plate.

The lower edge of the segmental plate A is straight, and the lower edge of the base B is made to align with the aforesaid edge. The upper edge ofthe plate extends beyond the line of the base, whereby the upper aperture and the upper end portion, 1), of the plate are made to project beyond the edge of the slat when the plate is securedto the blind.

In attaching the plate, all the slats being loosely connected by a bar attached to their inner edges in the usual way, itis secured by means of the base B to the end of the central slat, D, or to any convenient slat of the blind, so as to project outward at right angles from the blind and partially beyond the inner edge of the recessed stile O, or the stile adapted to engage the stile of an opposing frame. When the plate is attached to a blind opening to the left, a left-hand plate must be employed, and

\ vice versa. to engage with the said plate, for the purpose Upon the stile C an angular lever, E, is pivoted at the intersection of its two members, 6 and e, the position of the vertical member 0 with relation to the plate being such that a lip, f, integral with and extending from its end at the inner side, will, when the slats are closed, enter the lower aperture of the plate and retain the slats in position. The lip f tapers slightly upward, so that whenit enters the aperture of the plate it wedges therein and prevents play of the slat. The horizontal member of the lever E is provided with a finger-plate, f, by which construction and arrangement the lipfis held by gravity in engagement with the apertured plate A.

In operation. when it is desired to hold the slats at right angles to the stile, or fully open, thelever is made to engage the upper aperture, and by the engagement of the lever with the intermediate apertures in the plate the slatsmay be held at various inclinations.

In Figs. 3, 4, and 5 the slats are shown as held in dili'erent positions.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

An improved blind-slat fastener consisting of the segmental plate A, provided with a series of radially-arranged apertures, 1), near the outer curved edge and having an apertured base, B, at right anglesl-hereto for securing it to a blind-slat, and the angular gravity-lever E, apertured at its angle for pivoting it to the stile and provided with the u pwardly-tapering lipf, extending from the end of the merit ber c, and the linger-platef", projecting laterally from the memberc', substantially as herein shown and described.

GEORGE \V. \VILLIAMS.

\Vitnesses:

J. F. AoKER, Jr, C. SEDGWIOK. 

